Q: What are the prime factors of the number 4,682,240?

 A: 2, 5, 31, 59

Why are those the prime factors of the number 4,682,240?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 4,682,240

4,682,240
Factor Arrows
22,341,120
Factor Arrows
21,170,560
Factor Arrows
2585,280
Factor Arrows
2292,640
Factor Arrows
2146,320
Factor Arrows
273,160
Factor Arrows
236,580
Factor Arrows
218,290
Factor Arrows
29,145
Factor Arrows
51,829
Factor Arrows
3159

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 5, 31, 59

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5 x 31 x 59 = 4,682,240

This can also be written as 29 x 51 x 311 x 591 = 4,682,240

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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